JP4922230B2 - Cable drawing machine control system - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a cable wire drawing machine control system, and in particular, a cable wire drawing machine control for controlling the operation of a cable wire drawing machine used for laying a power cable or a communication cable at a construction site such as a factory or a plant. About the system.

  For example, in Patent Document 1, in order to improve the efficiency of the wire drawing work and to provide an improved wire drawing method for unmanned and centralized control for power cable drawing, the following long cable unmanned wire drawing The construction method is disclosed. In other words, in a long cable route, a laying system comprising a plurality of wire-drawing machines arranged in a substantially constant section, a master station centralized control panel, a slave station control box, and a power / control cable that links the sections. For the speed control, the wire drawing machine automatically controls the wire drawing speed in response to the command pulse of the master station, and all the wire drawing machines can be operated at the same speed, and the speed can be freely changed. This is a large-sized cable long unmanned wire drawing method that can be extended with a cable unmanned by applying an AC servo driver and an AC servo motor. In addition, in the failure display of the system, each slave station detects a failure signal, feeds it back to the master station using the multiplex transmission method, and displays it on the centralized control panel linked to the slave station number, so that a quick failure response can be taken. This is a large-sized cable long unmanned wire drawing method characterized by the above.

  Here, in Patent Document 1, in particular, an AC servo motor is prepared for each wire drawing machine, and complete synchronous control is performed using a control line on which a pulse signal is placed, and a telephone signal is modulated and superimposed on the control line. It is a feature.

  Further, for example, in Patent Document 2, a cable wire drawing system capable of improving the performance and workability of a cable wire drawing device at a low cost is disclosed with the following configuration. That is, it comprises a basic system in which a drive motor included in a wire drawing device is controlled and driven by a vector control type inverter and a control device therefor. It is designed to perform inverter control by space vector control of vector control type inverters by calculating magnetic flux and torque from voltage and current in AC induction motors used as drive motors, corresponding to high torque output at the start of wire drawing device. In addition, a special speed detector is not required for the drive motor.

  Here, Patent Document 2 is characterized in that a vector control type inverter is prepared for each wire drawing machine, and the speed signal and the control signal are separately controlled.

  Further, for example, Patent Document 3 discloses a wire drawing machine control system that eliminates the need for a control signal line (communication dedicated line) and improves work efficiency and costs. That is, a cable wire drawing machine control system that controls one or more wire drawing machines and lays cables, and receives a control command signal to control the entire system, and to each wire drawing machine A motor control unit that is connected and performs drive control of the motor of each wire drawing machine, and is connected between the motor control unit and the control device, and a drive control signal based on a control signal output from the control device is transmitted to the motor control unit. And a power supply line connected to each of the wire drawing machine, the control device, the motor control unit, and the subordinate device, and for transmitting drive power. The control device and the subordinate device are connected to the power line by the power line communication unit. Communication is performed using the transmission medium.

  Here, in patent document 3, an inverter is prepared for each wire drawing machine, and control is performed using power line conveyance.

Japanese Patent No. 2831496. Japanese Patent No. 3058075. Japanese Patent Application Laid-Open No. 2004-312897.

  However, in Patent Document 1, there is a problem that expensive AC servos are required for the number of wire-drawing machines, and telephone signals are superimposed on control lines, but there is no expandability. Further, there is a problem that the position of the control panel is fixed and cannot be moved.

  Moreover, in patent document 2, the command signal was transmitted with respect to the inverter using the analog line, and there existed a problem that an expensive vector type inverter was needed for the number of wire drawing machines. In addition, there is a problem that the apparatus is not expandable and the position of the control panel is fixed and cannot be moved.

  Furthermore, in Patent Document 3, the control signal is superimposed on the power cable using the power line carrier, but the control method is the token passing method, and the control cycle becomes longer as the number of wire drawing machines increases. There was a problem. There is also a problem that the next command cannot be issued until the cycle is completed.

  The object of the present invention is to provide a cable wire drawing machine control system that solves the above-mentioned problems and can be appropriately moved without fixing a master machine having a control panel, and has excellent mobility compared to the prior art. There is.

The cable wire drawing machine control system according to the present invention,
A distribution board connected to an external power source and having a LAN switching hub;
An inverter provided for each wire drawing machine that extends the cable, connected to the distribution board via a composite cable including a power cable and a LAN cable, and converts and supplies power from the power cable to the wire drawing machine A plurality of slave units each having a LAN switching hub and a LAN communication processing unit connected to the LAN switching hub, and connected in cascade through a daisy chain,
A cable wire drawing machine control system including a master unit connected to at least one of the plurality of slave units and having a LAN communication processing unit,
The communication processing unit of the parent device transmits a registration request packet by broadcast to the communication processing units of the plurality of child devices,
In response to the registration request packet from the parent device, the communication processing unit of the child device registers the MAC address and IP address of the parent device in the ARP table of the storage device of the communication processing unit of the child device. Stored in
The communication processing unit of the child device transmits a communication packet of data including information related to the inverter of the child device to the communication processing unit of the parent device by unicast with reference to the ARP table.

  Therefore, according to the cable wire drawing machine control system according to the present invention, the master machine can be appropriately moved without being fixed, and the mobility is excellent as compared with the prior art.

  Hereinafter, embodiments according to the present invention will be described with reference to the drawings. In addition, in each following embodiment, the same code | symbol is attached | subjected about the same component.

Embodiment 1 FIG.
FIG. 1 is a block diagram showing a configuration of a cable drawing machine control system according to Embodiment 1 of the present invention. In FIG. 1, an extension cable 9 wound around a cable drum 7 is connected to a traction cable 10 via a connection fitting 12, and the traction cable 10 is rotated rightward in the figure by rotation of a traction drum 25 with a motor. Towed. Here, the wire drawing cable 9 and the traction cable 10 are passed through the wire drawing portions of the plurality of wire drawing machines 8. A power cable 3 and a LAN (Local Area Network) cable 5 (for example, Ethernet (registered trademark)) are provided between the distribution board 2 and the plurality of slave units 4 and between the external power supply 1 and the distribution board 2. And a composite cable 6 including a connection cable. In addition, the distribution board 2 does not need to be installed at the end, and may be installed anywhere.

  FIG. 6 is a block diagram showing a detailed configuration of the distribution board 2 and its peripheral part in FIGS. 1 to 4 and 7. In FIG. 6, an external power source 1 is connected to breakers 24B and 24C, a switching hub (for example, a switching hub for Ethernet (registered trademark)) 20, and a power outlet 23 via a breaker 24A. Supplies power from the external power source 1 to the cable wire drawing machine control system. The power is turned on / off by the breaker 24A. The supplied power is supplied to each slave unit 4 of the system via the power cable 3 via the breaker 24B or 24C. Here, the breakers 24A, 24B, and 24C are operated by an operator 16 that controls the system. The breakers 24B and 24C are turned on / off by the operator 16 depending on the state of extension. For example, as will be described later in detail, when a plurality of distribution boards 2 are in the system, they are used so that they are not supplied from both. The power supply also supplies power to the switching hub 20 in the distribution board 2 and the external equipment of the distribution board 2 as an external outlet. The power supply is, for example, the master unit 11 connected to the switching hub 20, wireless LAN access Used by point 15, surveillance camera 13, and the like. The distribution board 2 is connected to each slave unit 4 by a single composite cable 6 including a power cable 3 and a LAN cable 5. Here, each slave unit 4 is connected in cascade through a composite cable 6.

  In FIG. 6, two connectors from the distribution board 2 to the composite cable 6 are prepared. However, if the standard of the wired LAN (for example, Ethernet (registered trademark)) is satisfied, a larger number of the same connectors are provided. You may connect with. As shown in FIG. 6, the base unit 11, the wireless access point device 15, and the monitoring camera 13 are connected to the switching hub 20 of the distribution board 2 through the LAN cable 5 as necessary. May be.

  FIG. 5 is a block diagram showing a detailed configuration of the slave unit 4 and its peripheral part of FIGS. 1 to 4 and 7. In FIG. 5, the handset 4 is prepared for each wire drawing machine 8, and the handset 4 includes an AC / DC inverter 21 that drives the wire drawing machine 8, a switching hub 20, and a communication processing unit 22. Power from the power cable 3 of the composite cable 6 is supplied to these circuit units 20, 21, and 22 and connected to a power outlet 23. The LAN signal is transmitted / received via the switching hub 20, and the base unit 11, the wireless access point device 15, the monitoring camera 13, and the communication processing unit 22 are connected to the switching hub 20 via the LAN cable 5. Is done. The subunit | mobile_unit 4 has the power outlet 23 similarly to the distribution board 2. As shown in FIG. The communication processing unit 22 includes a cable deflection detection and cable movement length measuring instrument 19 for cable monitoring (here, at least one of the cable deflection measurement instrument and the cable movement length measurement instrument may be provided). Can be connected. A measurement value signal can be periodically transmitted to the parent device 11 at a predetermined cycle via the communication processing unit 22.

  A normal LAN hub electrically distributes LAN signals, whereas the switching hub 20 once buffers the port, confirms the MAC (Media Access Control) address, and refers to the routing table to transfer the port. This is transmitted after the (forwarding destination) is determined. For this reason, a normal LAN hub has a limited number of connections due to the problem of electrical delay, whereas the switching hub 20 can theoretically be connected in any number. In addition, since buffering is performed once, a delay occurs. However, a normal LAN hub shares a band with the entire connection, whereas the switching hub 20 has independent communication bands between adjacent connections. If transmission / reception is full-duplex communication, transmission and reception are independent communication bands. However, the maximum bandwidth LAN signal cannot be received simultaneously from a plurality of ports. For example, a switching hub 20 of 100 Mbps having 8 ports cannot transfer 100 Mbps × 7 = 700 Mbps to one port of data sent from 7 ports at 100 Mbps.

  Note that, similar to the slave unit 4, the master unit 11 includes a communication processing unit 22 for LAN communication, which will be described in detail later, an input unit, a display unit, and the like.

  In general, in LAN communication, communication is performed using a MAC address uniquely determined for each device. In IP (Internet Protocol) communication normally used in a LAN, ARP (Address Resolution Protocol) communication is used to obtain a MAC address from an IP address. An ARP packet in which the IP address of a device whose MAC address is desired is described is transmitted by broadcast. Only the device whose IP address matches returns an ARP reply packet describing its own MAC address. The device received at this time writes the source MAC address and IP address in the ARP table. The original device that has received the ARP reply packet writes the queried IP address and the received MAC address in the ARP table (stored in the memory of each terminal). Thereby, unicast communication can be performed by IP communication. Although a method of communicating all by broadcast is also conceivable, it is necessary to process all broadcast communication packets in an upper layer, which places a burden on the processing of the device. If it is possible to sort by the MAC address, it is possible to determine whether it is addressed to the lower layer, so that processing in the upper layer is reduced.

  Although the ARP communication is general-purpose, the remaining time of the ARP table is determined, and the ARP communication starts when it is desired to transmit again after a certain period of time. If one device only interacts with devices that are not so many, there is no problem. However, in the wire drawing machine control, since one master unit controls, for example, 60 wire drawing machines, the load of ARP communication becomes large. Therefore, the master unit 11 used in the wire drawing machine control system transmits by broadcast, and the slave unit 4 transmits to the master unit 11 by unicast. When the slave unit 4 receives the broadcast packet from the master unit 11, the slave unit 4 registers the MAC address and IP address of the master unit 11 in the ARP table. Note that the IP address of the base unit 11 is not arbitrary, and a fixed address is given. Thereby, it is possible to know whether the communication packet is from the parent device 11 or not.

  At the time of control, the base unit 11 transmits an on / off communication packet by broadcast. At this time, in consideration of the loss of the communication packet, for example, it may be transmitted three times continuously. When receiving the communication packet, the slave unit 4 executes on / off control of the inverter 21. In the case of continuous transmission a plurality of times, a cyclic number for knowing whether or not the communication packet is the same is described so as not to react to the same communication packet over and over again. After transmitting the control communication packet, the parent device transmits a communication packet for confirming the state of the child device 4 by broadcasting. Also in this case, it may be transmitted continuously three times in consideration of the loss of the communication packet. When sending multiple times, enter the cyclic number. When the slave unit 4 receives the communication packet, the communication packet including data including the on / off state of the inverter 21, information of the inverter 21 (frequency, abnormality information, etc.) and other necessary information is returned to the master unit 11 by unicast. To do. In the unicast communication at this time, the previous ARP table is referred to. The base unit 11 can know the state of the handset 4 by receiving this communication packet. Since the parent device 11 needs to constantly monitor the state of the child device 4, the state of the child device 4 is periodically (for example, every 100 msec). In addition, since the subunit | mobile_unit 4 is daisy chain-connected, the transmission order of the transmitted communication packet does not change.

  The master unit 11 wants to control the slave unit 4 and perform on / off control independently of the status check cycle of the slave unit 4. This is because it is desired to react immediately when the operator 16 performs on / off control. Since the operator 16 performs fine control such as bending, reaction speed is important. Therefore, the ON / OFF control communication packet and the slave unit state confirmation communication packet can be communicated independently. The control information at this time is recorded in the internal memory of the base unit 11 or the like. As a result, the ON / OFF control communication packet can be transmitted at any time regardless of the communication packet for checking the handset status. The slave unit status confirmation communication packet obtains the on / off control information sent to the slave unit at the time of transmission from the memory or the like, and records the contents confirmed by the slave unit status confirmation communication packet in the memory. Keep it. In this way, the ON / OFF control communication packet and the slave unit state confirmation communication packet can be implemented independently.

  The master unit 11 can take measures such as an emergency stop when there is no reply from the slave unit 4 twice in the slave unit state confirmation. Alternatively, when an abnormality occurs in the parent device 11 from the child device 4, it can be dealt with by transmitting to the parent device 11 by unicast. Note that communication is not performed between the slave units 4. This is to reduce the burden of packet processing.

  Now, the actual registration of the ARP table of the child device 4 is performed when the parent device 11 transmits a confirmation packet of the child device 4 that is performed when the child device 11 is started up. The parent device 11 transmits a confirmation packet of the child device 4 by broadcasting, and the connected child device 4 registers the MAC address and IP address of the parent device 11 in the ARP table. Basically, only the master unit 11 is registered. This is because the packet processing burden on the handset 4 increases. The handset 4 that has received the packet returns. Based on the returned information, the base unit 11 confirms whether the handset is connected by mistake, and at the same time, creates a table that associates the handset number and the MAC address on the internal memory in the base unit 11.

  At this time, the ARP table registered by the child device 4 and the association table of the child device number and the MAC address created by the parent device 11 become default. The handset 4 does not update the ARP table after this point. The subunit | mobile_unit 4 always monitors the MAC address and IP address of the received packet, and ignores the packet which came from a different MAC address. At this time, the slave unit 4 can also notify the registered master unit 11 that a command has been received from another device. The base unit 11 always confirms the handset number and MAC address of the received packet. If there is a different combination, an abnormality can be detected and an emergency stop or a warning sound can be taken to notify the operator 16.

  When the connection confirmation of the slave unit 4 is completed, the inverter 21 of the slave unit 4 can be set. This setting content can be recorded as a file on the non-volatile memory or the hard disk of the parent device 11. In the field, multiple cables are often laid for several days. If the setting contents are recorded at this time, the state of the previous day can be restored.

  As described above, according to the present embodiment, since communication using an ARP packet does not occur by adopting such a communication method, LAN communication is smoothly performed between the parent device 11 and each child device 4. be able to. Also, by separating the on / off control of the inverter 21 and the like and the status confirmation communication of the slave unit 4, the on / off control can be performed without waiting for the completion of the status confirmation communication. Further, even when a packet at the time of occurrence of an abnormality is received, a packet for stopping the wire drawing machine can be transmitted immediately. Furthermore, by providing the slave unit 4 with a switching hub function, the installation location of the master unit 11 can be moved.

Embodiment 2. FIG.
FIG. 2 is a block diagram showing the configuration of the cable drawing machine control system according to Embodiment 2 of the present invention. In FIG. 2, the wire drawing machines 8 are installed at intervals of about 30 m, for example, and this interval varies depending on the environment where the wire drawing machines 8 are installed. The wireless LAN access point device 15 is connected to the switching hub 20 of the slave unit 4 and installed. Each of the operator 16 and the monitor 17 is provided with an IP mobile phone 18. The IP mobile phone 18 is a phone that can make a VoIP call via the wireless access point device 15 using, for example, an Ethernet (registered trademark) LAN. Here, the IP mobile phone 18 can also roam or move while talking. Normally, the IP mobile phone 18 is one-to-one communication, but may be a transceiver type in order to share a conversation. Further, if it is only desired to notify the abnormality, the slave unit 4 may be provided with an abnormality notification button or the like so that it can be pressed.

  As described above, according to the present embodiment, the monitor 17 can notify the operator 16 by telephone using the IP mobile phone 18 when an abnormality occurs in the cable or the wire drawing machine 8. Further, the operator 16 can instruct the monitor 17 using the IP mobile phone 18 by telephone.

Embodiment 3 FIG.
FIG. 3 is a block diagram showing a configuration of a cable drawing machine control system according to Embodiment 3 of the present invention. In FIG. 3, surveillance cameras 13 </ b> A to 13 </ b> H are installed at cable positions to be monitored and connected to the control panel or the switching hub 20 of the slave unit 4. In addition, monitoring indicators 14A and 14B such as LED displays and personal computers (not shown) that can display images captured by a plurality of monitoring cameras 13A to 13H in a continuous section are installed, and monitoring personnel 17A, 17A, 17B is arranged. That is, the image data of the images captured by the monitoring cameras 13A to 13H is transmitted to the monitoring indicators 14A and 14B via the slave unit 4 and the LAN cable 5 and displayed. In FIG. 3, one monitoring display 14A, 14B or a personal computer (not shown) is installed for every four monitoring cameras 13A to 13H. Although the capacity of the video data is large, since the switching hub 20 is daisy chain connected, if the traffic is determined and monitored in a certain section, it is possible to monitor with little influence on the control packet. . Although not shown in FIG. 3, if a display 14 </ b> A or a personal computer is installed at the place of the operator 16, it is possible to check the situation by switching the screen when there is an abnormality.

  As described above, according to the present embodiment, since the plurality of monitoring cameras 13A to 13H are provided and the monitoring indicators 14A and 14B for displaying the captured images are provided, the monitoring staff 17 is provided at all the monitoring locations. Since it is not necessary to arrange, the number of the supervisors 17 can be reduced.

Embodiment 4 FIG.
FIG. 4 is a block diagram showing a configuration of a cable drawing machine control system according to Embodiments 4 and 5 of the present invention. In FIG. 4, a cable bending detection and cable movement length measuring device 19 (see FIG. 5) is installed for each wire drawing machine 8, and monitoring cameras 13 </ b> A to 13 </ b> H are provided. A monitor display 14A or a personal computer (not shown) is installed at the operator 16. The monitoring display 14A of the operator 16 can switch and display the monitoring cameras 13A to 13H at regular intervals while considering the transmission band of the wired LAN. Alternatively, the cable feed speed may be automatically controlled by switching the frequency of the inverter 21 using the cable deflection detection and cable movement length measuring device 19.

  When the cable bending detection and the measured value of the cable moving length measuring instrument 19 become an abnormal value, the slave unit 4 notifies the master unit 11 when the wire drawing machine 8 detects the abnormality. A display device or a personal computer is registered in advance in the parent device 11, and when an abnormality is detected, the parent device 11 controls the display device or personal computer to display an abnormal part. The display of the master unit 11 also displays where the abnormality has occurred. The master unit 11 can be automatically stopped by an emergency, or can be manually stopped by the operator 16. Further, the operator 16 can instruct the monitor 17 with the IP mobile phone 18 to check the abnormal part.

  In the above embodiment, the number of display devices is one. However, when a very long cable is laid, it is also possible to monitor the state of the monitor 17 by installing it at a plurality of locations. Further, if the display device is mounted on a terminal having a wireless LAN function, the supervisor 17 can carry it, and the mobility is improved.

  As described above, according to the present embodiment, the communication band of the wired LAN can be suppressed by setting the location where the camera video is displayed at regular time intervals and the location where an abnormality has occurred. And the number of monitoring personnel 17 can be reduced.

Embodiment 5 FIG.
In the present embodiment, in the configuration of FIG. 4, the operator 16 and the monitor 17 have an on / off switch terminal device having a wireless LAN function. Here, the on / off switch terminal device includes a switch capable of remotely controlling on / off of each wire drawing machine 8 via a wireless LAN. Here, the switch transmits a communication packet corresponding to ON / OFF of each wire drawing machine 8 to the communication processing unit of the parent machine 11 by broadcasting. Therefore, the on / off operation can be easily performed without drawing the wired on / off switch. Can also be used as an emergency stop button. In addition, since it is a LAN operation, it is possible to record which switch is controlled.

  In the above embodiment, a simple switch is used. However, by carrying a personal computer or a PDA (Personal Digital Assistant) device having a wireless LAN function, more detailed control can be performed. Note that all the above control is performed with the base unit 11. In addition, in order not to perform extra packet processing, it is possible to register the switch or personal computer in the parent device 11.

Embodiment 6 FIG.
FIG. 7 is a block diagram showing a configuration of a cable drawing machine control system according to Embodiment 6 of the present invention. When the cable laying length becomes long, it becomes impossible to supply with only one distribution board due to voltage drop or current increase. In that case, as shown in FIG. 7, it is possible to add a distribution board 2 </ b> A connected to the external power source 1 </ b> A in the middle of the two slave units 4 adjacent to each other. In FIG. 7, the external power supply 1 of the previous distribution board 2 and the additional external power supply 1A are separated via the distribution board 2A. At this time, this can be realized by turning off the breaker on the left side of the distribution board 2A. Alternatively, the left composite cable 6 may be a LAN-only one. Furthermore, if the composite cable 6 is composed of only the LAN cable 5, it is not necessary to separate the power from the other distribution board 1 by the distribution board 1A, and it may be separated between the slave units 4.

  Since the LAN cable 5 has a high withstand voltage, it is connected to a different power source without being insulated, but it is also possible to insulate by connecting an optical LAN cable converter or a switching hub in the middle. . Further, there is no change in the control method even if a power source is added to the base unit 11. Note that the breakers 24B and 24C need not be provided when an optical LAN cable converter or the like is inserted midway.

  As described above, according to the present embodiment, even a long cable can be easily extended.

Effects in each embodiment.
The monitor 17 that monitors the abnormality of the extension cable 9 can be provided with the IP mobile phone 18 to notify the operator when an abnormality occurs. In addition, the operator 17 can notify all of the users by enabling a chat-type call.

  Further, the switching hub 20 of the handset 4 has an effective speed in the band between the hubs. For this reason, even if the number of wire-drawing machines increases, monitoring can be performed without using up the bandwidth by monitoring the camera video for every predetermined section. Moreover, it is not necessary to arrange a monitor for each of the wire drawing machines 8, and the number of the monitor 17 can be reduced.

  Further, by switching and displaying the video of the monitoring camera at the abnormal location, it becomes possible to monitor at one location without using up all the LAN bandwidth. Moreover, it is not necessary to arrange a monitor for each of the wire drawing machines 8, and the number of the monitor 17 can be reduced.

  Furthermore, by using a wireless LAN, the switch can be used to turn on / off from anywhere. Also, by broadcasting from the switch, it is possible to notify a communication packet that is instantaneously turned on / off without generating an ARP packet.

  Furthermore, when a very long cable is laid, even if the power is insufficient, it can be supplied midway. In addition, since the switching hub 20 is daisy chain connected, the number of slave units 4 can be easily increased.

  As described in detail above, a distribution board connected to an external power source and having a LAN switching hub, and a composite unit including a power cable and a LAN cable provided in each of the wire drawing machines for extending the cable. An inverter connected via a cable and converting and supplying power from the power cable to the wire drawing machine; a LAN switching hub; and a LAN communication processing unit connected to the LAN switching hub. A cable wire drawing machine control system comprising a plurality of slave units connected in cascade through a daisy chain connection, and a master unit connected to at least one of the plurality of slave units and having a LAN communication processing unit The communication processing unit of the parent device transmits a registration request packet by broadcast to the communication processing units of the plurality of child devices, and the communication processing unit of the child device In response to the registration request packet from the parent device, the MAC address and IP address of the parent device are stored so as to be registered in the ARP table of the storage device of the communication processing unit of the child device. The processing unit transmits a communication packet of data including information on the inverter of the slave unit to the communication processing unit of the master unit by unicast with reference to the ARP table. Therefore, the master unit having the control panel can be appropriately moved without being fixed, and a cable wire drawing machine control system that is superior in mobility compared to the prior art can be provided.

It is a block diagram which shows the structure of the cable wire drawing machine control system which concerns on Embodiment 1 of this invention. It is a block diagram which shows the structure of the cable wire drawing machine control system which concerns on Embodiment 2 of this invention. It is a block diagram which shows the structure of the cable wire drawing machine control system which concerns on Embodiment 3 of this invention. It is a block diagram which shows the structure of the cable wire drawing machine control system which concerns on Embodiment 4 and 5 of this invention. It is a block diagram which shows the detailed structure of the subunit | mobile_unit 4 of FIG. 1 thru | or FIG. 4 and FIG. 7, and its peripheral part. It is a block diagram which shows the detailed structure of the distribution board 2 of FIG. 1 thru | or FIG. 4 and FIG. 7, and its peripheral part. It is a block diagram which shows the structure of the cable wire drawing machine control system which concerns on Embodiment 6 of this invention.

Explanation of symbols

  1, 1A external power supply, 2, 2A distribution board, 3 power cable, 4 slave unit, 5 LAN cable, 6 composite cable, 7 cable drum, 8 wire drawing machine, 9 wire drawing cable, 10 towing cable, 11 parent Machine, 12 connecting bracket, 13A-13H surveillance camera, 14A-14B monitor display, 15 wireless LAN access point, 16 operator, 17, 17A-17B monitor, 18 IP mobile phone, 19 cable deflection detection and cable movement Length measuring device, 20 switching hub, 21 inverter, 22 communication processing unit, 23 power outlet, 24A-24C breaker, 25 tow drum.

Claims (6)

A distribution board connected to an external power source and having a LAN switching hub;
An inverter provided for each wire drawing machine that extends the cable, connected to the distribution board via a composite cable including a power cable and a LAN cable, and converts and supplies power from the power cable to the wire drawing machine A plurality of slave units each having a LAN switching hub and a LAN communication processing unit connected to the LAN switching hub, and connected in cascade through a daisy chain,
A cable wire drawing machine control system including a master unit connected to at least one of the plurality of slave units and having a LAN communication processing unit,
The communication processing unit of the parent device transmits a registration request packet by broadcast to the communication processing units of the plurality of child devices,
In response to the registration request packet from the parent device, the communication processing unit of the child device registers the MAC address and IP address of the parent device in the ARP table of the storage device of the communication processing unit of the child device. Stored in
The communication processing unit of the slave unit transmits a communication packet of data including information related to the inverter of the slave unit to the communication processing unit of the master unit by unicast with reference to the ARP table. Wire drawing machine control system. A wireless LAN access point device connected to the switching hub of each of the slave units,
An IP phone that is carried by the operator of the base unit and has a wireless LAN function for communicating with the wireless access point device;
2. The cable wire drawing machine control system according to claim 1, further comprising: an IP telephone having a wireless LAN function that is carried by a supervisor who monitors each of the slave units and communicates with the wireless access point device. A monitoring camera that is provided for each wire drawing machine of each slave unit, is connected to the switching hub of the slave unit, and images the cable;
And a monitoring display for displaying an image of image data picked up by the monitoring camera. The monitoring display is provided at a ratio of one for every several of the plurality of slave units. Item 3. A cable drawing machine control system according to item 1 or 2. A measuring means provided at a monitoring position of the cable, connected to the switching hub of the slave unit, and including at least one of a cable deflection measuring instrument and a cable length measuring instrument;
The measurement means displays a communication packet including data of measurement values measured by the measurement means periodically at a predetermined cycle on the display unit of the parent device by transmitting the communication packet to the communication processing unit of the parent device. The cable wire drawing machine control system according to any one of claims 1 to 3. A switch means having a wireless LAN function for turning on / off the operation of the wire drawing machine;
3. The cable wire drawing machine control system according to claim 2, wherein the switch means broadcasts a corresponding communication packet in response to an operation on / off to the master unit.   6. The cable wire drawing machine according to claim 1, wherein the distribution board is arranged so as to be inserted at a position in the middle of a plurality of slave units connected in cascade. Control system.

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